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yN M del.) J. H. NoRTHRoP.

SUPPORT FOR SPINNING SPINDLBS.

Patented May 21 1889.

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N. PETERS mmuiruqnpmn waminmor u. C,

'UNITED STATES PATENT OEEICE.

JAMES H. NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPERd: SONS, OF SAME PLACE.

SUPPORTvFOR SPINNING-SPINDLES.

I SPECIFICATION forming part of Letters Patent No. 403,855, dated May21, 1889.

Application filed January 2, 1889. Serial No. 295,190. (No model.)

To all whom it may concern:

Be it known that I, JAMES H. NoRTHRoP, of Hopedale, county of Vorcester,State of Massachusetts, have invented an Improvement in Supports forSpinning-Spindles, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This invention has for its obj ect to prevent the rotation of the stepand the bolster in the supporting-case with the spindle, my improvementbeing represented in connection with a bolster and step substantiallysuch as shown in United States Patent No. 883,048, dated May 15, 1888. y

In the invention herein to be described the bolster and step areadjustably connected together by means of a screw-thread, and the lowerend of the bolster is notched and the step at the lower end of thebolster is also notched, the notches in both the bolster and step beingentered by one and the same pin or stop, the latter preventing therotation of both the bolster and the step with the spindle. Herein bythe employment of a single pin I am enabled to accomplish all that hasbeen heretofore accomplished by the employment of two pins or stops.

The particular features in which my invention consist will be pointedout in the claims at the end of the specification.

Figure l is a vertical section of a spindlebearing embodying myinvention, the drawings showing the bolster-hook as inserted therein;Fig. 2, a cross-section thereof in the y line a', and Fig. 3 shows thestep separat-ely.

The rail A and the supportingcase B, mounted thereon and held in placeby the nut C, are and may be of any usual construction.

The bolster a-a tube of metal, shown in this instance of my invention assurrounded for part of its length by an elastic packing, b-has at itslower end, and externally thereto, a series of holding-notches, 2, andat its interior, at its lower end, the bolster has a screwthreadedportion, as represented in the drawings, in which is screwed thethreaded step d. The step d has an enlarged foot, d', which is notchedexternally, (see Fig. 3,) as at 4. The step and bolster are united by ascrew,

and by rotating one or the other their relative positions may bechanged, as provided for in United States Patent No. 383,048, to enablethe tapering inner surface of the bolster to be kept at proper height tocontact with the usual tapering surface of the spindle, (not showin) butwhich may be as in the said patent. By means of the hook or tool e, ithaving prongs to enter the usual oil-holes in the bolster, the lattermay be engaged to be more or less withdrawn and rotated, as may bedesired. The lower end of the spindle in practice rests on the upper endof the step. For the best results, the step, as well as the bolster,should be restrained from rotating with the spindle. To do this I havedrilled ahole into the bottom of the bore of the supporting-case, inwhich I have inserted a locking pin or stop, f, which is of sufficientlength to receive on it the grooved part of the head of the step d', andalso the grooved part 2 of the bolster, thus restraining both the stepand bolster from rotating. IVhen it is desired to rotate the bolster toplace it at a higher level in the supporting-case with relation to thebolster, the operator, by removing the spindle and inserting the hook,may engage the bolster and pull it outwardly far enough to remove thegrooved part 2 of the bolster from the pin or projection f, and then hewill rotate the bolster to the proper extent while the pin f yet holdsthe step. By providing four notches, 2, it is possible to turn thebolster less than awhole rotation, as will be understood. By placing thelocking-pin f in vertical position, instead of putting the same in ahole made transversely through the supporting-case, all possibility ofthe escape of oil at or about the pin is avoided.

I am aware that spindle-holsters have been prevented from being rotatedin a supporting-case by the employment of a pin or projection, and I amalso aware that spindlesteps have been likewise restrained from rotationwith the spindle by means of a pin or projection; but prior to myinvention I am not aware that one and the same pin or projection hasbeen employed to restrain both the bolster and the step from rotation.

I claim*- 1. The supporting-case, the bolster, and the IOC step therein,eech notched as described, Conlbined with single vertically-placed pinor stop, f, to engage both the step and bolster, substantially asdescribed.

2. The supporting-case, the bolster notched at its lower end, and thestep therein, notched as described, the bolster and step being oonneetedtogether adjustably by screw-threads, combined with a pin or stop toengage both the ystep and the bolster to restrain them from Io rotation,Substantially es described.-

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

i JAMES H. NORATHRQP. Witnesses:

E D- BNC-OFT H. F. SEARLES.

